US3913584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination myringotomy scalpel, aspirator and otological vent tube inserter
Assignee: Xomox Corp
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Filing: 1974-06-28
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Granted: 1975-10-21
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Expires: 1994-06-28
Abstract
Abstract A surgical instrument constitutes a myringotomy scalpel, aspirator, and otological vent tube inserter comprising a hand grip member having a trigger hingedly mounted thereto; an aspirator tube projecting outwardly from the hand grip member and having a free, outer end which terminates in a scalpel-defining tip; and a sleeve slidably carried by the aspirator tube and connected to the trigger, wherein pivotal movement of the trigger imparts linear movement to the sleeve along the aspirator tube.
Inventors
- 👤 David L Walchle
- 👤 Raymond H Haerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:06
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/34; A61B17/3468; A61F; A61F11/00; A61F11/20; A61F11/202; A61M; A61M1/00; A61M1/71; A61M1/76; A61B17/32; A61B17/320016; A61B2017/00535; A61B2017/00544; A61B2017/00743; A61B2017/00787; A61B17/56; A61B17/58; A61B17/88; A61B17/92; A61B2017/922
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
153 words
A surgical instrument constituting a myringotomy scalpel, aspirator and otologIcal vent tube inserter comprising: a hand grip member including an elongate, substantially tubular portion having opposite ends and a passageway therethrough; a trigger hingedly connected to said tubular portion intermediate the ends thereof; an elongate, hollow, aspirator tube associated with said hand grip member, said tube having opposite ends, one of which is disposed in open communication with one end of the passageway through said hand grip member, the other end of said tube terminating in a free, outer end which defines a hollow, scalpel-defining tip; an elongate sleeve slidably carried by said aspirator tube; means operably interconnecting the sleeve and trigger whereby pivotal movement of the trigger imparts linear movement to the sleeve along said aspirator tube; and a coupling in association with the other end of the passageway through said hand grip member for connection to a source of negative pressure.
Claim 2
Dependent Claim
153 words
A surgical instrument constituting a myringotomy scalpel, aspirator and otologIcal vent tube inserter comprising: a hand grip member including an elongate, substantially tubular portion having opposite ends and a passageway therethrough; a trigger hingedly connected to said tubular portion intermediate the ends thereof; an elongate, hollow, aspirator tube associated with said hand grip member, said tube having opposite ends, one of which is disposed in open communication with one end of the passageway through said hand grip member, the other end of said tube terminating in a free, outer end which defines a hollow, scalpel-defining tip; an elongate sleeve slidably carried by said aspirator tube; means operably interconnecting the sleeve and trigger whereby pivotal movement of the trigger imparts linear movement to the sleeve along said aspirator tube; and a coupling in association with the other end of the passageway through said hand grip member for connection to a source of negative pressure.
Claim 3
Dependent Claim
57 words
An instrument as called for in claim 1, wherein the outer diameter of the aspirator tube is adapted to slidably receive the bore of an otological vent tube, and wherein an end of said sleeve is adapted to abuttingly engage and move a vent tube along said aspirator tube in response to pivotal movement of said trigger.
Claim 4
Dependent Claim
35 words
An instrument as called for in claim 1, wherein the hand grip member is of unitary construction and includes an integral, thin, flexible, hinge-defining web of material hingedly connecting said trigger to said tubular portion.
Claim 5
Dependent Claim
41 words
An instrument as called for in claim 1, wherein the aspirator tube comprises a substantially L-shaped, hollow, open-ended tube, and wherein one end of the tube is releasably secured to and carried by the tubular portion of the hand grip member.
Claim 6
Dependent Claim
32 words
An instrument as called for in claim 1, wherein said coupling member comprises a plurality of integral, spaced, radially projecting, peripherally extending ribs which circumscribe the outer periphery of said tubular member.
Claim 7
Dependent Claim
41 words
An instrument as called for in claim 1, which includes a passageway in the wall of and intermediate the length of the tubular portion of the hand grip member and in open communication with the passageway extending through said tubular portions.
Claim 8
Dependent Claim
38 words
An instrument as called for in claim 6, which includes a raised, contoured, finger-receptive pad on the outer peripheral surface of said tubular portion and wherein an end of the first mentioned passageway is located within said pad.
Claim 9
Dependent Claim
29 words
An instrument as called for in claim 7 which includes a thumb-receptive loop secured to and carried by said tubular portion at a location diametrically opposite said finger pad.
Claim 10
Dependent Claim
59 words
An instrument as called for in claim 1, wherein said trigger is substantially L-shaped having a first leg and second leg intersecting and interconnected at the hinged connection, one of said legs terminating in a clevis-like end portion, and wherein said sleeve includes a planar, depending end-plate adapted to be coupled to and engaged by said clevis-like end portion.
Claim 11
Dependent Claim
31 words
An instrument as called for in claim 9, wherein said end plate includes an elongate slot and wherein said clevis like end portion includes a post slidably received by said slot.
Claim 12
Dependent Claim
21 words
An instrument as called for in claim 9, wherein the other leg of the trigger terminates in a contoured, finger-receptive pad.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |